<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>文本排版</title>
    <style>
        .article p {
            font-size: 16px;
            text-indent:1em;
            line-height:1.5;
    }

        .article p:first-letter {
            font-size: 24px;
            font-weight: bold;    
    }
    </style>
</head>
<body>
    <article class="article">
        <p>这是文章的第一段。</p>
        <p>这是文章的第二段。</p>
      </article>
</body>
</html>